G11B 2007/13722
Fresnel lenses
Official title: {Fresnel lenses}
G11B2007/13722 (Fresnel lenses) appears on 18 US grants and 19 published applications in this corpus.
Search patents in G11B- Granted patents
- 18
- Published applications
- 19
- Assignees
- 22
- Inventors
- 72
- Latest grant
- 7 Jan 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 1 | 5 |
| 2008 | 2 | 4 |
| 2009 | 0 | 1 |
| 2010 | 4 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Wireless device7 Jan 2020US 10,530,058 B2Kabushiki Kaisha Toshiba
- Micro-Fresnel zone plate optical devices using densely accumulated ray points13 Sep 2011US 8,018,815 B2The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Liquid crystal lens element and optical head device10 Aug 2010US 7,773,489 B2Asahi Glass Company, Limited
- Liquid crystal lens element optical head device15 Jun 2010US 7,738,344 B2Asahi Glass Company, Limited
- Optical pickup device and optical disk drive15 Jun 2010US 7,738,347 B2Panasonic Corporation
- Optical system for holographic storage and design method for fresnel lens and meta lens thereof16 Feb 2023US 2023/0047873 A1Amethystum Storage Technology Co., Ltd.
- Wireless device26 Jul 2018US 2018/0212327 A1Kabushiki Kaisha Toshiba
- Composite optical element and optical head device10 May 2012US 2012/0112048 A1Asahi Glass Company, Limited
- Devices And Methods For A Micro-Fresnel Zone Plate Optical Device13 May 2010US 2010/0118683 A1Administrator of the National Aeronautics
- Multifocal objective lens and optical information recording/reproducing device8 Oct 2009US 2009/0252021 A1Hoya Corporation
Most cited
By later US patents
- High numerical aperture optical focusing device having a conical incident facet and a parabolic reflector for use in data storage systems185US 6,377,535 B1Read-Rite Corporation · 2002
- High numerical aperture optical focusing device for use in data storage systems165US 6,229,782 B1Read-Rite Corporation · 2001
- Hybrid refractive/diffractive achromatic lens for optical data storage systems109US 5,349,471 AUniversity of Rochester · 1994
- Objective lens for a pickup optical system23US 5,936,782 AFuji Photo Optical Co., Ltd. · 1999
- Error detecting device for optical head21US 5,195,072 ATosoh Corporation · 1993